Board diagonal measurement system and method suitable for multiple specifications of gypsum boards

Abstract

A board diagonal measurement system and method suitable for multiple specifications of gypsum boards (1). The system comprises a cross-type guide rail (2), diagonal point positioning members (3), and a driving structure (4); the cross-type guide rail (2) is composed of two sliding rails (21) crossing each other; the driving structure (4) is used for driving the two sliding rails (21) to rotate, so that the sliding rails (21) keep parallel to diagonals of a gypsum board (1) having a corresponding size, wherein in an initial state, a rectangular area formed by connecting position points where the diagonal point positioning members (3) are located is located outside the gypsum board (1). The cross-type guide rail (2) is arranged above a conveyor belt (5), the sliding rails (21) keep parallel to the diagonals of the gypsum board (1) having the corresponding size, the positions of the diagonal point positioning members (3) also change along with the sliding rails, so that the length and the width of the rectangular area are adjusted, and the rectangular area which is inwardly contracted and then completes positioning of the gypsum board is just matched with the specification of the gypsum board (1). The present invention is suitable for diagonal measurement of the multiple specifications of gypsum boards (1).

Description

A board diagonal detection system and method suitable for gypsum boards of various specifications Technical Field

[0001] The present invention relates to the technical field of diagonal line detection, and in particular to a board diagonal line detection system and method applicable to gypsum boards of various specifications. Background Art

[0002] During the production process, paper-faced gypsum board sheets should be cut into rectangles, and the deviation of the two diagonals should not exceed 5mm. In the actual production process, due to equipment wear or equipment failure, it is very easy to cause large diagonal deviations. Therefore, during the production process of gypsum board, the diagonal length of the gypsum board needs to be tested. The traditional way of measuring the diagonal of gypsum board is usually regular spot checks and manual measurements by staff. This measurement method is slow and it is easy to cause batch production of unqualified boards with large diagonal deviations due to untimely measurement, which not only delays the production process but also causes waste of resources.

[0003] To solve the problem of inaccurate manual detection, the existing technology also has automatic diagonal detection by machines. When the gypsum board is transported to the specified position, the transportation is stopped, the corner position of the gypsum board is fixed, and then the length of the diagonal line is detected by the laser transmitter and receiver set at the diagonal position.

[0004] Although the existing technology can realize automatic detection of diagonals, since the positioning structure has a fixed trajectory in the process of fixing the corner position of the gypsum board, positioning is ultimately achieved at the corner position of the gypsum board. It is only suitable for measuring the diagonals of gypsum boards of one specification, and is not suitable for measuring the diagonals of gypsum boards of multiple specifications on the production line. The applicable scenarios are limited.

[0005] Summary of the Invention

[0006] To this end, the present invention provides a board diagonal detection system and method suitable for gypsum boards of multiple specifications, which effectively solves the problem that the diagonal automatic detection technology in the prior art is only applicable to the diagonal measurement of gypsum boards of one specification, is not applicable to the diagonal measurement of gypsum boards of multiple specifications on the production line, and has limitations in applicable scenarios.

[0007] To solve the above technical problems, the present invention specifically provides the following technical solutions: a board diagonal detection system applicable to gypsum boards of various specifications, comprising:

[0008] A cross guide rail is provided just above the conveyor belt. A lifting frame is provided on the side of the conveyor belt. The cross guide rail is mounted on the lifting frame. The cross guide rail is composed of two sections of mutually intersecting slide rails. A mounting seat is movably provided along the length direction of the slide rail.

[0009] A diagonal positioning piece is installed at the bottom of the mounting seat, the diagonal positioning piece is positioned at the corner of the gypsum board, and a detection structure is provided on the inner side of the diagonal positioning piece;

[0010] A driving structure is provided at the connection between the lifting frame and the slide rail, and is used to drive the two sections of the slide rail to rotate so that the slide rail remains parallel to the diagonal of the gypsum board of corresponding size;

[0011] Wherein, in the initial state, the rectangular area formed by the line connecting the position points of the diagonal positioning members is outside the gypsum board.

[0012] Further,

[0013] The lifting frame includes a lifting cylinder arranged on the side of the conveyor belt, a horizontal frame connected to the output end of the lifting cylinder, and a mounting nacelle arranged in the middle of the horizontal frame;

[0014] An arcuate groove is provided on the inner wall of the peripheral side of the installation nacelle, and the slide rail passes through the arcuate groove, and the central angle of the arcuate groove is less than 90°.

[0015] Further,

[0016] The driving structure includes a first rotating seat and a second rotating seat arranged in the mounting nacelle, a rotating cylinder arranged on the first rotating seat, and a rotating shaft column arranged on the second rotating seat;

[0017] The first rotating seat and the second rotating seat are respectively connected to the slide rail, and the central axis extension lines of the first rotating seat, the second rotating seat, the rotating cylinder and the rotating shaft column coincide with each other;

[0018] The rotating shaft passes through the rotating cylinder.

[0019] Further,

[0020] The rotating cylinder is provided with a transmission gear, a side of the transmission gear is meshed with a driving gear, and the driving gear is provided with a first driving motor;

[0021] A second driving motor is provided on the rotating shaft.

[0022] Further,

[0023] The outer shell of the rotating cylinder is provided with a first mounting sleeve, the rotating shaft column is provided with a second mounting sleeve, a U-shaped frame is connected between the first mounting sleeve and the second mounting sleeve, the end of the rotating cylinder is connected to a first bevel gear, and the rotating shaft column is connected to a second bevel gear;

[0024] A connecting shaft is provided through the U-shaped frame, one end of the connecting shaft is connected to the third bevel gear, and the other end is connected to the third drive motor;

[0025] The upper and lower ends of the third bevel gear are respectively engaged with the first bevel gear and the second bevel gear.

[0026] Further,

[0027] The end of the rotating cylinder is provided with a first rotating wheel, the end of the rotating shaft column is provided with a second rotating wheel, and the side of the mounting cylinder cabin is horizontally provided with a rotating shaft and a fixed shaft, and the extension lines of the central axes of the rotating shaft and the fixed shaft coincide with each other;

[0028] A first transmission wheel is fixedly provided on the rotating shaft, and a second transmission wheel is rotatably provided on the fixed shaft;

[0029] A transmission belt is provided on the first rotating wheel, and the transmission belt is supported on the first transmission wheel, the second transmission wheel and the second rotating wheel, and is transported on the first rotating wheel, the first transmission wheel, the second transmission wheel and the second rotating wheel;

[0030] The rotating shaft passes through the side wall of the installation nacelle, and the end portion thereof is connected to a fourth driving motor.

[0031] Further,

[0032] The slide rail is composed of a horizontal air pressure cylinder and a vertical air pressure cylinder, and the horizontal air pressure cylinder is connected to the vertical air pressure cylinder;

[0033] A first piston is provided in the vertical air pressure cylinder, a lifting rod is connected to the first piston, a mounting frame is provided on the mounting cylinder cabin, a movable cylinder is provided on the mounting frame, and the upper part of the lifting rod is connected to the output end of the movable cylinder through a cross bar;

[0034] A second piston is movably arranged in the transverse air pressure cylinder, a movable rod is arranged at the end of the second piston, and the mounting seat is connected to the end of the movable rod.

[0035] Furthermore, a rotating motor is provided in the mounting seat;

[0036] The diagonal positioning member includes a positioning frame connected to the output end of the rotating motor, a side groove arranged on the inner side of the positioning frame, and a first side block and a second side block arranged in the middle position of the side groove;

[0037] The positioning frame is formed by connecting two long positioning blocks, and the angle between the two long positioning blocks is 110° to 130°. A positioning shaft is provided through the middle position of the positioning frame. The first side block and the second side block are both rotatably set on the positioning shaft. The inner sides of the first side block and the second side block are connected to the side groove through springs.

[0038] Further,

[0039] The detection structure includes a pressure sensor arranged in the side groove;

[0040] One end of the spring abuts against the pressure sensor;

[0041] A movable shaft is also provided through the middle of the positioning frame, the positioning shaft corresponds to the end of the movable shaft, a movable seat is fixedly provided on the movable shaft, an infrared transmitter is provided on the movable seat, and an infrared receiver is provided on another movable seat located at a diagonal position of the movable seat;

[0042] The movable shaft is connected with a movable motor, and the top of the movable motor is lower than the bottom of the movable rod.

[0043] In order to solve the above technical problems, the present invention further provides the following technical solutions:

[0044] A detection method for a plate diagonal detection system applicable to gypsum boards of various specifications, comprising:

[0045] Step 100: monitor the position of the gypsum board in real time, and stop transporting the gypsum board when it is directly below the rectangular area and its edges do not exceed the rectangular area;

[0046] Step 200 , detecting the specifications of the gypsum board and adjusting the length and width of the rectangular area;

[0047] Step 300: Placing the gypsum board in a rectangular area, shrinking the rectangular area, and positioning the edges and corners of the gypsum board;

[0048] Step 400, detecting the diagonal angle;

[0049] Step 500: Adjust the detection direction of the diagonal position, obtain distance data when the detection directions correspond, and calculate the difference.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] In the present invention, a cross guide rail composed of two sections of mutually intersecting slide rails is arranged above the conveyor belt, and a driving structure is arranged at the connection between the slide rail and the lifting frame. The driving structure can drive the two sections of the slide rail to rotate so that the slide rail remains parallel to the diagonal of the gypsum board of corresponding size. The position of the diagonal positioning member changes accordingly, and the length and width of the rectangular area are adjusted. After the gypsum board is retracted and the rectangular area is positioned, it is just adapted to the specifications of the gypsum board. It is suitable for diagonal measurement of gypsum boards of multiple specifications and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0053] FIG1 is a schematic structural diagram of a board diagonal detection system in an initial state for gypsum boards of various specifications provided by an embodiment of the present invention;

[0054] FIG2 is a schematic structural diagram of a plate diagonal detection system for positioning and measuring gypsum boards, provided by an embodiment of the present invention, which is applicable to gypsum boards of various specifications;

[0055] FIG3 is a schematic structural diagram of a portion of the drive structure according to an embodiment of the present invention using the first embodiment;

[0056] FIG4 is a schematic structural diagram of a portion of the drive structure according to the second embodiment of the present invention;

[0057] FIG5 is a schematic structural diagram of a portion of the drive structure according to the third embodiment of the present invention;

[0058] FIG6 is a schematic top view of a portion of the drive structure according to the third embodiment of the present invention;

[0059] FIG7 is a schematic structural diagram of a slide rail in an embodiment of the present invention;

[0060] FIG8 is a schematic structural diagram of a diagonal positioning member and a detection structure in an embodiment of the present invention;

[0061] FIG9 is a schematic diagram of the inner structure of the positioning long block in an embodiment of the present invention.

[0062] The reference numerals in the figure represent the following: 1 - gypsum board; 2 - cross guide rail; 3 - diagonal positioning member; 4 - driving structure; 5 - conveyor belt; 6 - lifting frame; 7 - mounting base; 8 - detection structure; 9 - rectangular area; 10 - rotating motor; 21 - slide rail; 31 - positioning frame; 32 - side groove; 33 - first side block; 34 - second side block; 35 - positioning long block; 36 - positioning shaft; 37 - spring; 41 - first rotating base; 42 - second rotating base; 43 - rotating cylinder; 44 - rotating shaft column; 45 - transmission gear; 46 - First drive motor; 47 - First drive motor; 48 - Second drive motor; 49 - First mounting sleeve; 410 - Second mounting sleeve; 411 - U-shaped frame; 412 - First bevel gear; 413 - Second bevel gear; 414 - Connecting shaft; 415 - Third bevel gear; 416 - Third drive motor; 417 - First rotating wheel; 418 - Second rotating wheel; 419 - Rotating shaft; 420 - Fixed shaft; 421 - First transmission wheel; 422 - Second transmission wheel; 423 - Transmission belt; 424 - Fourth drive motor; 61 - Lifting cylinder; 62 - Cross frame; 63 - Mounting nacelle; 64 - Arc groove; 211 - Horizontal air pressure cylinder; 212 - Vertical air pressure cylinder; 213 - First piston; 214 - Lifting rod; 215 - Mounting frame; 216 - Movable cylinder; 217 - Cross rod; 218 - Second piston; 219 - Movable rod; 81-pressure sensor; 82-movable shaft; 83-movable seat; 84-infrared transmitter; 85-infrared receiver. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0064] As shown in FIG. 1 and FIG. 2 , the present invention provides a board diagonal detection system applicable to gypsum boards of various specifications, comprising a cross-type guide rail 2 , a diagonal positioning member 3 and a driving structure 4 .

[0065] The cross guide rail 2 is set just above the conveyor belt 5. A lifting frame 6 is set on the side of the conveyor belt 5. The cross guide rail 2 is installed on the lifting frame 6. The cross guide rail 2 is composed of two sections of mutually intersecting slide rails 21. A mounting seat 7 is movably provided along the length direction of the slide rail 21.

[0066] The diagonal positioning member 3 is installed at the bottom of the mounting seat 7. The diagonal positioning member 3 is positioned at the corner of the gypsum board 1. A detection structure 8 is provided on the inner side of the diagonal positioning member 3.

[0067] The driving structure 4 is provided at the connection between the lifting frame 6 and the slide rail 21. The driving structure 4 is used to drive the two sections of the slide rail 21 to rotate so that the slide rail 21 remains parallel to the diagonal of the corresponding size of the gypsum board 1;

[0068] In the initial state, a rectangular area 9 formed by a line connecting the position points of the diagonal positioning members 3 is outside the gypsum board 1 .

[0069] In the present invention, a cross guide rail 2 consisting of two sections of mutually intersecting slide rails 21 is arranged above the conveyor belt 5, and a driving structure 4 is arranged at the connection between the slide rail 21 and the lifting frame 6. The driving structure 4 can drive the two sections of the slide rail 21 to rotate so that the slide rail 21 remains parallel to the diagonal of the gypsum board 1 of the corresponding size. The position of the diagonal positioning member 3 follows the change, and the length and width of the rectangular area 9 are adjusted. After retracting and positioning the gypsum board 1, the rectangular area 9 is just adapted to the specifications of the gypsum board 1, and is suitable for diagonal measurement of gypsum boards 1 of multiple specifications, and has a wide range of applications.

[0070] In the present invention, the cross guide rails 2, diagonal positioning members 3 and other structures are all liftable, and the lifting and lowering are completed by the lifting frame 6. The lifting frame 6 adopts the following preferred embodiment, and the lifting frame 6 includes a lifting cylinder 61 arranged on the side of the conveyor belt 5, a cross frame 62 connected to the output end of the lifting cylinder 61, and an installation nacelle 63 arranged in the middle position of the cross frame 62.

[0071] The lifting cylinder 61 is vertically arranged and is arranged on the side of the conveyor belt 5, driving the cross frame 62 to move up and down, thereby driving the installation nacelle 63 and the cross guide rail 2 to move up and down.

[0072] In order to install the slide rail 21, an arc-shaped groove 64 is opened on the inner wall of the mounting cylinder 63, and the slide rail 21 passes through the arc-shaped groove 64. That is, the end of the slide rail 21 is installed in the mounting cylinder 63, and the central angle corresponding to the arc-shaped groove 64 is less than 90°, which limits the rotation angle of the slide rail 21.

[0073] In addition, the present invention provides a driving structure 4 to drive the slide rail 21 to rotate, so as to adjust the length and width of the rectangular area 9. In the present invention, the shape of the rectangular area 9 can be regarded as a proportional increase in the shape of the gypsum board 1.

[0074] The driving structure 4 adopts the following preferred embodiment, as shown in Figure 3, the driving structure 4 includes a first rotating seat 41 and a second rotating seat 42 arranged in the installation barrel 63, a rotating cylinder 43 arranged on the first rotating seat 41, and a rotating shaft column 44 arranged on the second rotating seat 42. The first rotating seat 41 and the second rotating seat 42 are respectively connected to the slide rail 21, and the extension lines of the central axes of the first rotating seat 41, the second rotating seat 42, the rotating cylinder 43 and the rotating shaft column 44 coincide, and the rotating shaft column 44 passes through the rotating cylinder 43.

[0075] Among them, the sliding rails 21 on the same straight line are regarded as the same sliding rail. There are two sliding rails 21 in the present invention. The two sliding rails 21 correspond to the two diagonals of the gypsum board 1 and correspond to the gypsum boards 1 of different specifications. The sliding rails 21 can rotate to be parallel to the corresponding diagonals of the gypsum boards 1.

[0076] During the adjustment process, the two slide rails 21 must rotate in opposite directions and at the same angle. The first rotating seat 41 and the second rotating seat 42 can both rotate, driving the two slide rails 21 to rotate.

[0077] In order to realize the above-mentioned rotation process, three embodiments are designed for the partial structure of the driving structure 4 of the present invention.

[0078] The first embodiment is:

[0079] As shown in FIG3 , a transmission gear 45 is provided on the rotating cylinder 43 , a driving gear 46 is meshed with a side of the transmission gear 45 , a first driving motor 47 is provided on the driving gear 46 , and a second driving motor 48 is provided on the rotating shaft 44 .

[0080] The first driving motor 47 can drive the driving gear 46 to rotate, thereby driving the transmission gear 45 to rotate, driving the rotating cylinder 43 to rotate, driving the first rotating seat 41 to rotate, and thus driving the correspondingly connected slide rail 21 to rotate.

[0081] The second drive motor 48 drives the rotating shaft column 44 to rotate, drives the second rotating seat 42 to rotate, and thus drives the corresponding connected slide rail 21 to rotate. As long as the rotation angles of the first drive motor 47 and the second drive motor 48 are consistent and the rotation directions are opposite, and the corresponding rotation angles are controlled according to the specifications of the gypsum board 1, it will be sufficient.

[0082] The second embodiment is:

[0083] As shown in Figure 4, the rotating cylinder 43 is outerly provided with a first mounting sleeve 49, the rotating shaft column 44 is provided with a second mounting sleeve 410, a U-shaped frame 411 is connected between the first mounting sleeve 49 and the second mounting sleeve 410, the end of the rotating cylinder 43 is connected to the first bevel gear 412, the rotating shaft column 44 is connected to the second bevel gear 413, and a connecting shaft 414 is provided through the U-shaped frame 411. One end of the connecting shaft 414 is connected to the third bevel gear 415, and the other end is connected to the third driving motor 416. The upper and lower ends of the third bevel gear 415 are respectively engaged with the first bevel gear 412 and the second bevel gear 413.

[0084] The third drive motor 416 drives the third bevel gear 415 to rotate clockwise (as viewed from left to right in the figure) (it can also rotate counterclockwise), driving the first bevel gear 412 to rotate counterclockwise (as viewed from top to bottom), and at the same time driving the second bevel gear 413 to rotate clockwise (as viewed from top to bottom), driving the rotating seat 41 to rotate counterclockwise, and the second rotating seat 42 to rotate clockwise, driving the two slide rails 21 to rotate in opposite directions, and the first bevel gear 412 and the second bevel gear 413 have the same specifications and the same rotation angle, and the rotation angle of the slide rail 21 is also the same. The rotation angle is always consistent, and the slide rail 21 can always maintain axial symmetry along the transportation direction of the gypsum board 1.

[0085] The second embodiment can ensure that the rotation angle is always consistent.

[0086] The third embodiment is:

[0087] As shown in Figures 5 and 6, a first rotating wheel 417 is provided at the end of the rotating cylinder 43, and a second rotating wheel 418 is provided at the end of the rotating shaft column 44. A rotating shaft 419 and a fixed shaft 420 are horizontally provided on the side of the mounting cylinder cabin 63. The extension lines of the central axes of the rotating shaft 419 and the fixed shaft 420 coincide with each other. A first transmission wheel 421 is fixedly provided on the rotating shaft 419, and a second transmission wheel 422 is rotatably provided on the fixed shaft 420. A transmission belt 423 is provided on the first rotating wheel 417. The transmission belt 423 is supported on the first transmission wheel 421, the second transmission wheel 422 and the second rotating wheel 418, and is transported on the first rotating wheel 417, the first transmission wheel 421, the second transmission wheel 422 and the second rotating wheel 418. The rotating shaft 419 passes through the side wall of the mounting cylinder cabin 63, and its end is connected to the fourth drive motor 424.

[0088] The transmission belt 423 passes through the first rotating wheel 417 , the first transmission wheel 421 , the second rotating wheel 418 , the second transmission wheel 422 in sequence, and then returns to the first rotating wheel 417 .

[0089] The fourth drive motor 424 drives the rotating shaft 419 to rotate, drives the first transmission wheel 421 to rotate, and drives the first rotating wheel 417, the second rotating wheel 418, and the second transmission wheel 422 to rotate through the transmission belt 423. Assuming that the rotating shaft 419 rotates clockwise and the first transmission wheel 421 rotates clockwise, the second rotating wheel 418 is driven to rotate counterclockwise (viewed from top to bottom in the figure), and the first rotating wheel 417 is driven to rotate clockwise (viewed from top to bottom). Since the first rotating wheel 417 and the second rotating wheel 418 are of the same size, the rotation angles can be consistent and the rotation directions are opposite, so that the first rotating seat 41 and the second rotating seat 42 rotate in opposite directions, and the rotation angles of the two slide rails 21 are opposite.

[0090] In order to enable the diagonal positioning member 3 to be movable along the direction of the slide rail 21, the mounting seat 7 is movable in the direction of the slide rail 21. For this purpose, the slide rail 21 adopts the following preferred embodiment, as shown in Figure 7, the slide rail 21 is composed of a horizontal air pressure cylinder 211 and a vertical air pressure cylinder 212, the horizontal air pressure cylinder 211 and the vertical air pressure cylinder 212 are connected, a first piston 213 is arranged in the vertical air pressure cylinder 212, the first piston 213 is connected to a lifting rod 214, a mounting frame 215 is arranged on the mounting cylinder cabin 63, a movable cylinder 216 is arranged on the mounting frame 215, the lifting rod 214 is connected to the output end of the movable cylinder 216 through a cross bar 217, a second piston 218 is movably arranged in the horizontal air pressure cylinder 211, a movable rod 219 is arranged at the end of the second piston 218, and the mounting seat 7 is connected to the end of the movable rod 219.

[0091] In the present invention, the slide rails 21 can be regarded as four, and every two can be regarded as a whole slide rail 21. When the movable cylinder 216 moves upward, it drives the cross bar 217 to move upward, thereby driving the lifting rod 214 and the first piston 213 to move upward, the gas moves upward, and the transverse air pressure cylinder 211 is in a negative pressure state. The first piston 213 moves toward the side of the mounting chamber 63, driving the movable rod 219 to move along the transverse air pressure cylinder 211, thereby driving the mounting seat 7 to move inward, and also driving the diagonal positioning member 3 to move inward.

[0092] In order to prevent the cross bar 217 from obstructing the rotation process during the rotation adjustment of the cross guide rail 2, the end of the cross bar 217 is rotatably connected to the output end of the movable cylinder 216. That is, when the horizontal pneumatic cylinder 211 rotates, the end of the cross bar 217 moves with the vertical pneumatic cylinder 212, and the rotation trajectory of the vertical pneumatic cylinder 212 is circular. Therefore, the horizontal distance between the vertical pneumatic cylinder 212 and the movable cylinder 216 remains unchanged. During the rotation process, at the end of the cross bar close to the vertical pneumatic cylinder 212, the first piston 213 can rotate in the vertical pneumatic cylinder 212, and at the end of the cross bar 217 close to the movable cylinder 216, the cross bar 217 can rotate with its output shaft as the center axis. Therefore, the cross bar 217 will not cause any obstruction during the rotation of the slide rail 21.

[0093] In the present invention, a rotating motor 10 is arranged in the mounting seat 7. As shown in Figures 8 and 9, the diagonal positioning member 3 includes a positioning frame 31 connected to the output end of the rotating motor 10, a side groove 32 arranged on the inner side of the positioning frame 31, and a first side block 33 and a second side block 34 arranged in the middle position of the side groove 32.

[0094] The positioning frame 31 is formed by connecting two positioning long blocks 35, and the angle between the two positioning long blocks 35 is 110°~130°. The rotating motor 10 can drive the positioning frame 31 to rotate, and also to adjust the angle between the first side block 33 and the second side block 34 and the side of the gypsum board 1 to be consistent, so as to balance the pressure on both sides.

[0095] A positioning shaft 36 is provided through the middle of the positioning frame 31 , and the first side block 33 and the second side block 34 are both rotatably provided on the positioning shaft 36 . The inner sides of the first side block 33 and the second side block 34 are connected to the side groove 32 via a spring 37 .

[0096] When not in contact with the gypsum board 1, the angle between the first side block 33 and the second side block 34 can be 90°, preferably less than 90°. In the process of gradually approaching the gypsum board 1, the first side block 33 and the second side block 34 gradually approach 90°.

[0097] In order to detect the diagonal corners of the gypsum board 1 , the detection structure 8 adopts the following preferred embodiment: the detection structure 8 includes a pressure sensor 81 arranged in the side groove 32 , and one end of the spring 37 abuts against the pressure sensor 81 .

[0098] By obtaining the reading of the pressure sensor 81 , the angle between the first side block 33 and the positioning long block 35 can be calculated, thereby obtaining the degree of the diagonal of the gypsum board 1 .

[0099] In addition, in order to obtain diagonal distance data, the present invention also makes the following design. As shown in Figure 9, a movable shaft 82 is also provided through the middle position of the positioning frame 31, and the positioning shaft 36 corresponds to the end of the movable shaft 82. A movable seat 83 is fixed on the movable shaft 82, and an infrared transmitter 84 is provided on the movable seat 83. An infrared receiver 85 is provided on another movable seat 83 located at a diagonal position of the movable seat 83. A movable motor 86 is connected to the movable shaft 82, and the top of the movable motor 86 is lower than the bottom of the movable rod 219.

[0100] The movable motor 86 drives the movable shaft 82 to rotate. For gypsum boards of different specifications, the infrared transmitter 84 and the infrared receiver 85 rotate until the infrared transmitter 84 and the infrared receiver 85 are in the same straight line (on the diagonal line). At this time, the infrared transmitter 84 emits infrared rays and the infrared receiver 85 receives infrared rays. The distance x between one diagonal infrared transmitter 84 and the infrared receiver 85 and the distance y between the other diagonal infrared transmitter 84 and the infrared receiver 85 are calculated. The deviation between the diagonals can be calculated by calculating the difference between x and y.

[0101] Among them, the calculated distances x and y between the infrared transmitter 84 and the infrared receiver 85 do not represent the length of the diagonal line. Assuming that the distance from the infrared transmitter 84 to the diagonal point is a, the lengths of the diagonal lines are x+2a and y+2a. Since the final difference to be calculated is (x+2a)-(y+2a)=xy, the final difference has nothing to do with a. Therefore, in the actual measurement process, only the x and y values ​​need to be calculated.

[0102] The present invention also provides a detection method for a plate diagonal detection system applicable to gypsum boards of various specifications, comprising:

[0103] Step 100: monitor the position of the gypsum board 1 in real time, and stop transporting the gypsum board 1 when it is directly below the rectangular area 9 and its edges do not exceed the rectangular area 9;

[0104] Step 200 , detecting the specifications of the gypsum board 1 and adjusting the length and width of the rectangular area 9 ;

[0105] Step 300: The gypsum board 1 is placed in the rectangular area 9, and the rectangular area 9 is retracted to position the corners of the gypsum board 1;

[0106] Step 400, detecting the diagonal angle;

[0107] Step 500: Adjust the detection direction of the diagonal position, obtain distance data when the detection directions correspond, and calculate the difference.

[0108] One specific embodiment of the above detection method is given below:

[0109] Step 100: monitor the position of the gypsum board 1 in real time. When the gypsum board 1 is transported to the bottom of the rectangular area 9 and the edge does not exceed the rectangular area 9, brake the conveyor belt 5 to stop the transportation of the gypsum board 1.

[0110] Step 200 , detecting the specifications of the gypsum board 1 , and rotating the slide rail 21 via the driving mechanism 4 to adjust the length and width of the rectangular area 9 so that the rectangular area 9 is a proportionally enlarged shape of the gypsum board 1 ;

[0111] Step 300: The gypsum board 1 is placed in the rectangular area 9. The movable cylinder 216 is driven to move the movable rod 219 inward, causing the diagonal positioning member 3 to retract. The rectangular area 9 retracts and positions the corners of the gypsum board 1.

[0112] Step 400: The first side block 33 and the second side block 34 are gradually attached to the corners of the gypsum board 1, and the diagonal angle is calculated based on the reading of the pressure sensor 81;

[0113] Step 500: Drive the rotary motor 10 to drive the infrared transmitter 84 and the infrared receiver 85 to rotate to the same straight line, start the detection, read the readings and calculate the diagonal difference.

[0114] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A board diagonal detection system suitable for gypsum boards of various specifications, characterized in that: have: A cross-type guide rail (2) is arranged directly above the conveyor belt (5); a lifting frame (6) is arranged on the side of the conveyor belt (5); the cross-type guide rail (2) is mounted on the lifting frame (6); the cross-type guide rail (2) is composed of two sections of mutually intersecting slide rails (21); a mounting seat (7) is movably arranged along the length direction of the slide rail (21); A diagonal positioning piece (3) is mounted on the bottom of the mounting seat (7), the diagonal positioning piece (3) is positioned in close contact with the corner of the gypsum board (1), and a detection structure (8) is provided inside the diagonal positioning piece (3); A driving structure (4) is arranged at the connection between the lifting frame (6) and the slide rail (21), and the driving structure (4) is used to drive the two sections of the slide rail (21) to rotate so that the slide rail (21) and the diagonal of the gypsum board (1) of corresponding size remain parallel; Wherein, in the initial state, a rectangular area (9) formed by a line connecting the position points of the diagonal positioning members (3) is outside the gypsum board (1).

2. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 1 is characterized in that: The lifting frame (6) comprises a lifting cylinder (61) arranged on the side of the conveyor belt (5), a cross frame (62) connected to the output end of the lifting cylinder (61), and a mounting nacelle (63) arranged in the middle of the cross frame (62); An arc-shaped groove (64) is provided on the inner wall of the peripheral side of the installation nacelle (63), and the slide rail (21) passes through the arc-shaped groove (64). The corresponding central angle of the arc-shaped groove (64) is less than 90 degrees.

3. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 2 is characterized in that: The driving structure (4) comprises a first rotating seat (41) and a second rotating seat (42) arranged in the mounting cylinder cabin (63), a rotating cylinder (43) arranged on the first rotating seat (41), and a rotating shaft column (44) arranged on the second rotating seat (42); The first rotating seat (41) and the second rotating seat (42) are respectively connected to the slide rail (21), and the central axis extension lines of the first rotating seat (41), the second rotating seat (42), the rotating cylinder (43) and the rotating shaft column (44) coincide with each other; The rotating shaft column (44) passes through the rotating cylinder (43).

4. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 3 is characterized in that: The rotating cylinder (43) is provided with a transmission gear (45), a side of the transmission gear (45) is meshed with a driving gear (46), and a first driving motor (47) is provided on the driving gear (46); A second driving motor (48) is arranged on the rotating shaft column (44).

5. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 3 is characterized in that: The rotating cylinder (43) is provided with a first mounting sleeve (49) on its outer sleeve, the rotating shaft column (44) is provided with a second mounting sleeve (410), a U-shaped frame (411) is connected between the first mounting sleeve (49) and the second mounting sleeve (410), a first bevel gear (412) is connected to the end of the rotating cylinder (43), and a second bevel gear (413) is connected to the rotating shaft column (44); A connecting shaft (414) is provided through the U-shaped frame (411); one end of the connecting shaft (414) is connected to a third bevel gear (415), and the other end is connected to a third driving motor (416); The upper and lower ends of the third bevel gear (415) are respectively meshed with the first bevel gear (412) and the second bevel gear (413).

6. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 3 is characterized in that: The end of the rotating cylinder (43) is provided with a first rotating wheel (417), the end of the rotating shaft column (44) is provided with a second rotating wheel (418), and the side of the mounting cylinder cabin (63) is horizontally provided with a rotating shaft (419) and a fixed shaft (420), and the extended lines of the central axes of the rotating shaft (419) and the fixed shaft (420) coincide with each other; A first transmission wheel (421) is fixedly disposed on the rotating shaft (419), and a second transmission wheel (422) is rotatably disposed on the fixed shaft (420); A transmission belt (423) is arranged on the first rotating wheel (417), and the transmission belt (423) is supported on the first transmission wheel (421), the second transmission wheel (422) and the second rotating wheel (418), and is transported on the first rotating wheel (417), the first transmission wheel (421), the second transmission wheel (422) and the second rotating wheel (418); The rotating shaft (419) passes through the side wall of the installation nacelle (63), and the end portion thereof is connected to a fourth driving motor (424).

7. The board diagonal detection system applicable to gypsum boards of various specifications according to any one of claims 4 to 6, characterized in that: The slide rail (21) is composed of a transverse air pressure cylinder (211) and a vertical air pressure cylinder (212), and the transverse air pressure cylinder (211) and the vertical air pressure cylinder (212) are connected; A first piston (213) is arranged in the vertical air pressure cylinder (212), a lifting rod (214) is connected to the first piston (213), a mounting frame (215) is arranged on the mounting cylinder cabin (63), a movable cylinder (216) is arranged on the mounting frame (215), and the upper part of the lifting rod (214) is connected to the output end of the movable cylinder (216) through a cross bar (217); A second piston (218) is movably arranged in the transverse air pressure cylinder (211), a movable rod (219) is arranged at the end of the second piston (218), and the mounting seat (7) is connected to the end of the movable rod (219).

8. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 7 is characterized in that: A rotating motor (10) is arranged in the mounting seat (7); The diagonal positioning member (3) comprises a positioning frame (31) connected to the output end of the rotating motor (10), a side groove (32) arranged inside the positioning frame (31), a first side block (33) and a second side block (34) arranged at a middle position of the side groove (32); The positioning frame (31) is formed by connecting two positioning long blocks (35), and the angle between the two positioning long blocks (35) is 110° to 130°. A positioning shaft (36) is provided through the middle position of the positioning frame (31), and the first side block (33) and the second side block (34) are both rotatably provided on the positioning shaft (36). The inner sides of the first side block (33) and the second side block (34) are connected to the side groove (32) through springs (37).

9. The board diagonal detection system applicable to gypsum boards of various specifications according to claim 8, characterized in that: The detection structure (8) comprises a pressure sensor (81) arranged in the side groove (32); One end of the spring (37) abuts against the pressure sensor (81); A movable shaft (82) is also provided through the middle of the positioning frame (31), and the positioning shaft (36) Corresponding to the end of the movable shaft (82), a movable seat (83) is fixedly arranged on the movable shaft (82), an infrared transmitter (84) is arranged on the movable seat (83), and an infrared receiver (85) is arranged on another movable seat (83) located at a diagonal position of the movable seat (83); The movable shaft (82) is connected to a movable motor (86), and the top of the movable motor (86) is lower than the bottom of the movable rod (219).

10. A detection method for a plate diagonal detection system applicable to gypsum boards of various specifications according to claim 9, characterized in that: include: Step 100, monitoring the position of the gypsum board (1) in real time, and stopping the transportation of the gypsum board (1) when the gypsum board (1) is transported to the bottom of the rectangular area (9) and the edge does not exceed the rectangular area (9); Step 200, detecting the specifications of the gypsum board (1) and adjusting the length and width of the rectangular area (9); Step 300, the gypsum board (1) is placed in the rectangular area (9), the rectangular area (9) is retracted and the corners of the gypsum board (1) are positioned; Step 400, detecting the diagonal angle; Step 500, adjusting the detection direction of the diagonal position, acquiring distance data and calculating the difference when the detection directions correspond.

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